feat: 增加请求弹窗和拒绝说明

WebRTCController/app/src/main/java/com/ttstd/controller/MainActivity.java

@@ -289,6 +289,13 @@ public class MainActivity extends AppCompatActivity {
             case "TARGET_OFFLINE":
                 handleTargetOffline(message);
                 break;
+            case "CONNECTION_REJECTED":
+                handleConnectionRejected(message);
+                break;
+            case "REQUEST_ERROR":
+            case "REQUEST_TIMEOUT":
+                handleRequestAborted(message);
+                break;
         }
     }
 
@@ -307,11 +314,48 @@ public class MainActivity extends AppCompatActivity {
         Log.w(TAG, "Target device " + offlineId + " is offline");
     }
 
+    /**
+     * 被控端拒绝了连接请求：提示用户并复位到未连接状态。
+     */
+    private void handleConnectionRejected(SignalMessage message) {
+        String targetId = message.getToDeviceId();
+        String payload = message.getPayload();
+        String text = (payload != null && !payload.isEmpty())
+                ? payload
+                : "目标被控端拒绝了连接请求";
+        String finalText = text;
+        runOnUiThread(() -> {
+            tvStatus.setText("状态: " + finalText);
+            Toast.makeText(MainActivity.this, finalText, Toast.LENGTH_LONG).show();
+            updateUI(false);
+        });
+        Log.w(TAG, "Connection request to " + targetId + " was rejected by controlled device");
+    }
+
+    /**
+     * 连接请求被服务器拒绝（REQUEST_ERROR）或应答超时（REQUEST_TIMEOUT）：提示并复位。
+     */
+    private void handleRequestAborted(SignalMessage message) {
+        String payload = message.getPayload();
+        String text = (payload != null && !payload.isEmpty())
+                ? payload
+                : "连接请求失败";
+        String finalText = text;
+        runOnUiThread(() -> {
+            tvStatus.setText("状态: " + finalText);
+            Toast.makeText(MainActivity.this, finalText, Toast.LENGTH_LONG).show();
+            updateUI(false);
+        });
+        Log.w(TAG, "Connection request aborted: " + finalText);
+    }
+
     private void handleAnswer(SignalMessage message) {
         try {
             JsonObject payload = gson.fromJson(message.getPayload(), JsonObject.class);
             String sdp = payload.get("sdp").getAsString();
             if (webRtcClient != null) {
+                // 被控端已接受连接请求，进入 WebRTC 协商阶段。
+                runOnUiThread(() -> tvStatus.setText("状态: 被控端已接受连接，正在建立连接..."));
                 webRtcClient.handleAnswer(sdp);
             }
         } catch (Exception e) {

WebRTCController/app/src/main/java/com/ttstd/controller/webrtc/WebRtcClient.java

@@ -285,6 +285,7 @@ public class WebRtcClient {
     }
 
     private void sendOffer(String sdp, String controlledId) {
+        Log.e(TAG, "sendOffer: " );
         SignalMessage msg = new SignalMessage();
         msg.setType("OFFER");
         msg.setFromDeviceId(deviceId);
@@ -299,6 +300,7 @@ public class WebRtcClient {
     }
 
     private void sendIceCandidate(IceCandidate candidate, String controlledId) {
+        Log.e(TAG, "sendIceCandidate: " );
         SignalMessage msg = new SignalMessage();
         msg.setType("ICE_CANDIDATE");
         msg.setFromDeviceId(deviceId);